HP2 ✓ Factory-verified

GMC · Regular Production Option

Hybrid propulsion, electric, AHS2

Years 2004–07, 2009 Models 3 Factory citations 4

Query this via API →

Also described as Hybrid propulsion system, electric, parallel (14V/42V, 120V outlets, idle engine stop)

Also documented for CadillacChevrolet

Documented applications

Sierra — GMT800 (1999–2007) →

• 2004–2007 ✓ Factory-verified

  2005–2007 lists word it as AHS2

  ⛭ GM factory document — 2004 gmc gmc c sierra 2wd rpo code list, p.1.

  ⛭ GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Sierra — GMT900 (2007–2013) →

• 2009 ✓ Factory-verified

  only in: Hybrid.

  ⛭ GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.

Yukon — GMT900 (2007–2014) →

• 2009 ✓ Factory-verified

  only in: Hybrid.

  ⛭ GM factory document — 2009 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of HP2 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.